贫金属星的中子俘获元素

来源 :高能物理与核物理 | 被引量 : 0次 | 上传用户:easyJMS
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利用分量系数公式并结合太阳系元素丰度的最新数据,计算了64颗贫金属星的中子俘获元素丰度. 结果显示,快中子俘获过程(r过程)是贫金属星中子俘获元素的主要来源,且金属丰度小于-2.5的贫金属星的重中子俘获元素产量可能来自于纯r过程;重中子俘获元素与轻中子俘获元素来自于不同的天体物理场所.
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